Vector Algebra

A vector has magnitude same as that of \(\vec{A}=3 \hat{i}+4 \hat{j}\) and is parallel to \(\vec{B}=4 \hat{i}+3 \hat{j}\). The \(x\) and \(y\) components of this vector in first quadrant are \(x\) and 3 respectively where \(x=\) _________.